Plow-jointer



(No Model.)

D. WOODWARD.

PLOW JOINTER.

Patented July 24, 1883.

{q 7 g NVENTOR:

ATTORNEYS.

N, PETE PhMo-Lilhagnpher. Wahingmn. D, C.

UNITED STATES PATENT- OFFICE.

DAVID WVOODWVARD, OF CLINTON, MICHIGAN.

PLOW-JOINTER.

SPECIFICATION forming part of Letters Patent No. 281,817, dated July 24, 1883.

Application filed March ,1, 1883. (No model.)

To all whom it may concern:

Be it known that 1, DAVID WOODWARD, of Clinton, in the county of Lenawee and State of Michigan, have invented a new and Improved Plow-Jointer, of which the following is a full, clear, and exact description.

My invention consists of an improved contrivance for the connection of the plow-j ointer to the plow proper, for facilitating the adjustment of the joint-er, and also for facilitating the discharge of thesward, manure,'or rubbish into the furrow to be properly covered, and to cause the same to escape from the supportingarm of the jointer and prevent clogging thereon, as is common with j ointers attached in the ordinary way, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective View of a plow having a j ointer attached according to my invention. Fig. 2 is a transverse section of the plowbeam through the joint by which the supporting-arm of the jointer is attached to the beam. Fig. 3 isa section of Fig. 2 on line 00 a. Fig. 4 is a plan view of a portion of the plow-beam and the jointer-supporting arm, and a horizontal section of one of the joint plates on line 3 y, Fig. 6. Fig. 5 is a face view of part of a rose-clutch device by which the jointer is fitted to the arm which supports it, for being shifted thereon to alter its pitch. Fig. 6 is a side elevation of one of the j oint-plates by which the jointer-supporting arm is connected to the beam; and Fig. 7 is a detail of the two j oi nt-plates employed in connecting the arm to the beam, one'being in section of line 3 Fig. 6, and the other being in top view.

I propose to employ a curved arm, a, for connecting the jointer b to the plow, so contrived, by connecting to the back of the moldboard of the j ointer and curving therefrom to ward the furrow side and thence upward to the furrow side of the beam 0, that any sward, straw, manure, and other matters rising up with the furrow-slice, raised by the joint-er and tending to pass over the mold-board, will pass on to the arm, which is smooth and oval in form, and is so curved that the said matters cannot lodge and clog on it, but will be drawn by the furrow-slice from said arm and discharged into holes f by bolt f, making a substantial connection, not liable to shift when bolt-ed up, but readily adjustable when the bolt is sufficiently slackened.

To connect the arm a to the beam, so that it can be readily shiftedto swing the j ointer up and down, and also to shift it laterally to the main plow, I make the arm a. with a disk-head, g, for bolting to the side of the plow-beam by a bolt, 71, throughthe axis of said disk, and make the disk with two lugs, j and k, 011 its face, the lugs being at diametrically-opposite points of the margin of the face. The disk is firmly bolted against a wedge, l, which is interposed between it and the flat face of a washer, m, having two other lugs, a 0, on the margin of its face, and being about midway between the lugs j k. The wedge has a slot, 1), through which the bolt h passes, and allowing said wedge to be shifted up and down between lugs j and a, by which the arm a may be set for altering the position of the jointer b for height. At the same time these lugs, and the others, 0 k, serve to form the bearing-points between the arm and the washer, it being intended that they shall touch and bear at the same time that the wedge Zbinds fast between the disk and washer. The wedge is also of double contrivance, designed to fit between lugs 0 k in the upper part at the same time that it bears against lugs j and a in the lower part, thus taking the stress of the back pressure on the jointer both sides oflthe pivot-bolt, and affording substantial support to the arm. The dotted lines of Fig. 3 illustrate the manner of adj usting the arm by the wedge.

For effecting the lateral adjustment of the jointer the back of the washer m is made convex, and it is fitted in aplate, q, having a concave front face, 3, and being adjustable along the plow-beam to alter the pitch of the washer, which is confined in its position by the bolt h. Plate q is slotted at t for the bolt 71, and at a for another bolt, 00, allowing it to be shifted along the beam, and also along washer m-to alter its inclination and thereby swing the jointer to right or left. The plate q has grooves 22 in its concave face 8, and the washer on has ribs 10 011 its convex side to prevent the washer from being turned by the pressure of the earth against the j ointer.

The dotted lines of Fig. 4 illustrate the mannor of adjusting the jointer laterally to the plow.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The jointer I), attached to the plow by an arm, a, connected to it back of its mold-board and curving to the furrowside, substantially as described.

2. The jointer I), attached to the plow by an arm, a, curving from the said jointer to the.

furrow side, and extending up to and connected to the furrow side of the beam, substantially as described.

provided with lugs j k, in combination with the wedge Z, and the washer m, h ving lugs n 0, said arm and washer being bolted against the side of the plow-beam, substantially as de scribed. y

4. The wedge Z, constructed in duplex form and combined with the disk g, having lugsj k, and the washer m, having lugs a o, substair tially as described.

5. The washer m, having convex back, and the plate q, having concave face 8, and being adjustable along the beam, in combination with the arm a, supporting the jointer Z), substantially as described.

6. The plate q, having grooves 12 in its concave face, and the washer on, having ribs 10 on its convex face, in combination with the plowbeam and the jointer-supporting arm, substantially as described.

DAVID WVOODVVARD.

Vitnesses:

DANFORTH Knyns, G-EORG Genome. 

